


$(document).ready(function(){

window.onload = function(){
    var options = {
        zoom: 15
        , center: new google.maps.LatLng(40.447429, -3.693253)
        , mapTypeId: google.maps.MapTypeId.ROADMAP
    };
    
    var map = new google.maps.Map(document.getElementById('mapa'), options);
    
        new google.maps.Marker({
        position: map.getCenter()
        , map: map
        , title: 'Pulsa aquí'
        , icon: 'http://gmaps-samples.googlecode.com/svn/trunk/markers/green/blank.png'
        , cursor: 'default'
        , draggable: true
    });
};

  
});